Moisturize.
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In addition to keeping the skin beneath your beard clean, be sure to keep it moisturized – otherwise your body may overcompensate by producing extra oil, which can cause breakouts. "You need to hydrate to avoid dryness and premature aging of the skin," says Dr. Peterkin. "It's also best if your moisturizer [contains a sunscreen] to protect against the damaging effects of the sun."

Massage a dab of moisturizer into your skin as you cover the rest of your face. Use a little extra on your neck area after shaving with a razor.